code: def norm(A):
      from numpy.linalg import norm
  
      return norm(A, 2)
  
file_path: ipyparallel/docs/source/examples/dependencies.py
imports: import ipyparallel
  from ipyparallel import Dependency
label_desc: Use image node_id 1 for calling a global function with example usage: norm(A) and returns: norm